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相关论文: Spin order dependent skyrmion stabilization in MnF…

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Magnetic materials with competing magnetocrystalline anisotropy and dipolar energies can develop a wide range of domain patterns, including classical stripe domains, domain branching, as well as topologically trivial and non-trivial…

Topological spin structures, such as magnetic skyrmions, hold great promises for data storage applications, thanks to their inherent stability. In most cases, skyrmions are stabilized by magnetic fields in non-centrosymmetric systems…

材料科学 · 物理学 2020-12-02 Danila Amoroso , Paolo Barone , Silvia Picozzi

Since the 1950s Heisenberg and others have attempted to explain the appearance of countable particles in quantum field theory in terms of stable localized field configurations. As an exception Skyrme's model succeeded to describe nuclear…

统计力学 · 物理学 2009-11-11 U. K. Roessler , A. N. Bogdanov , C. Pfleiderer

We re-examine the internal structure of skyrmioniums stabilized in quasi-two-dimensional chiral magnets with easy-axis uniaxial anisotropy. Skyrmioniums are particle-like states of two nested skyrmions with opposite polarities contributing…

介观与纳米尺度物理 · 物理学 2024-04-17 Kaito Nakamura , Andrey O. Leonov

We demonstrate a novel approach to control and stabilize magnetic skyrmions in ultrathin multilayer nanostructures through spatially engineered magnetostatic fields generated by ferromagnetic nanorings. Using analytical modeling and…

介观与纳米尺度物理 · 物理学 2025-05-09 Mateusz Zelent , Maciej Krawczyk , Konstantin Y. Guslienko

Skyrmion formation in centrosymmetric magnets without Dzyaloshinskii-Moriya interactions was originally predicted from unbiased numerical techniques. However, no attempt has yet been made, by comparison to a real material, to determine the…

强关联电子 · 物理学 2025-03-25 Max Hirschberger , Satoru Hayami , Yoshinori Tokura

Skyrmions, which are topologically stable magnetic structures, have manifested promising features to be used as an information carrier in new-age, non-volatile data storage devices. In this article, Co/Pt square nano-structure with Co-free…

材料科学 · 物理学 2025-01-23 Tamali Mukherjee , V Satya Narayana Murthy

Understanding the dynamics of the magnetic skyrmion, a particle-like topologically stable spin texture, and its response dynamics to external fields are indis-pensable for the applications in spintronic devices. In this letter, the Lorentz…

应用物理 · 物理学 2019-12-02 Bei Ding , Jie Cui , Guizhou Xu , Zhipeng Hou , Hang Li , Enke Liu , Guangheng Wu , Yuan Yao , Wenhong Wang

Non-collinear chiral antiferromagnets like Mn3Sn and Mn3Ge are known to show gigantic anomalous Hall response depending on the orientation of their inverse chiral magnetic order of Mn atoms in Kagome layers. Here we study the stability of…

介观与纳米尺度物理 · 物理学 2017-05-03 Hiroyuki Fujita

Magnetic skyrmions and bubbles, observed in ferromagnetic thin films with perpendicular magnetic anisotropy, are topological solitons which differ by their characteristic size and the balance in the energies at the origin of their…

Skyrmions and antiskyrmions are topologically protected spin structures with opposite topological charge. Particularly in coexisting phases, these two types of magnetic quasi-particles may show fascinating physics and potential for…

Spin textures with nontrivial topology, such as vortices and skyrmions, have attracted attention as a source of unconventional magnetic, transport, and optical phenomena. Recently, a new generation of topological spin textures has been…

强关联电子 · 物理学 2021-11-08 Satoru Hayami , Yukitoshi Motome

Motivated by the observation of Skyrmion-like magnetic textures in 2D itinerant ferromagnets Fe$_n$GeTe$_2$ ($n \geq3$), we develop a microscopic model combining itinerant magnetism and spin-orbit coupling on a triangular lattice. The…

Skyrmion crystals have been primarily discovered under a magnetic field for materials with non-centrosymmetric interactions. More recent developments have investigated the stability of skyrmion crystals in itinerant magnets without magnetic…

其他凝聚态物理 · 物理学 2026-05-21 H. Bocquet , C. J. Ganahl , M. Scheurer , P. M. Derlet , A. M. Läuchli

We employed small-angle neutron scattering to demonstrate that the magnetic skyrmion lattice can be realized in bulk chiral magnets as a thermodynamically stable state at temperatures much lower than the ordering temperature of the…

Ferrimagnetic Fe/Gd multilayers host maze-like stripe domains that transform into a disordered bubble/skyrmion lattice under out-of-plane magnetic fields at ambient temperature. Femtosecond magneto-optics distinguishes these textures via…

Multiple-$Q$ states as represented by a magnetic skyrmion crystal and hedgehog crystal have been extensively studied in recent years owing to their unconventional physical properties. The materials hosting multiple-$Q$ states have been so…

强关联电子 · 物理学 2024-12-06 Satoru Hayami , Ryota Yambe

This paper delves into the origins and specificity of the unique stable spin textures (360{\deg} closed loop domain walls and skyrmions) observed in exchange-biased systems, with either in-plane or out-of-plane magnetic anisotropy. In the…

介观与纳米尺度物理 · 物理学 2025-08-01 Bernard Dieny , Olivier Fruchart , Ernesto E. Marinero

Magnetic thin films hosting topological spin textures, such as magnetic skyrmions, hold high potential for breakthroughs in the field of spintronics, due to good scalability and energy efficiency. Novel computational architectures such as…

材料科学 · 物理学 2025-02-19 Ahmad Dibajeh , Cameron W. Johnson , Andreas K. Schmid , Roberto Lo Conte

We study the stabilization and electrical manipulation of skyrmions in magnetic ultrathin films in the absence of an applied magnetic field. We show that this requires an increased magnetic anisotropy, controlled by the sample thickness, as…

材料科学 · 物理学 2023-01-06 Sougata Mallick , Sujit Panigrahy , Gajanan Pradhan , Stanislas Rohart